from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Measurement of the properties of light, especially luminous intensity.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the measurement of various aspects of light, especially its intensity
- n. the measurement of the intensity and spectrum of light from stars
from the GNU version of the Collaborative International Dictionary of English
- n. That branch of science which treats of the measurement of the intensity of light.
from The Century Dictionary and Cyclopedia
- n. The measurement of the relative amounts of light emitted by different sources.
- n. Measurement of the amount of insufficiency of the external muscles of the eye; the scientific use of the phorometer.
- n. In biology, the reactional movement, positive and negative, with an indifference point between, of organisms under changing intensity of illumination.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. measurement of the properties of light (especially luminous intensity)
Sorry, no etymologies found.
Christie: There are lots of ways you can get involved in observational astronomy, but in talking about photometry, which is a measurement of star brightness, you basically just need a telescope with as much aperture as you can afford.
That's called photometry, and that's primarily what we do.
Despite ill health, she rose to become the head of stellar photometry at the prestigious Harvard College Observatory.
The mistery of the hue divisions is part of what fascinates me, and I'd like to confirm if I'm right about the least-difference value scale (or if it was a middle-value one), or what I think I got regarding the use of the color-tops (instead of photometry).
The worry was not about the pipeline itself, which by then Robert Lupton was writing and which was working beautifully, but about precision of the photometry going into it.
Comparisons of spore dosimetry and spectral photometry of solar-UV radiation at four sites in Japan and Europe.
Among other things, it means that "the Pasma Cosmology, "electromagnetic model", analysis & interpretation and conclusion" (whatever that might be) needs to account for all the (centuries-worth) observations of (classical) novae … the photometry, the spectroscopy, the light-curves, … the whole kit and kaboodle.
This is a good target for time series photometry, and at its current brightness, we highly recommend using filters.
"Deep CCD BV photometry of the poorly studied NGC 4815" , A&A.Sup.
Pettersson estimated the cost of a Watson scintillation microscope, a comparison eye piece for scintillation photometry, two holoscopic objectives, and a number of scintillation screens and absorbing foils, to be 86 dollars, a considerable amount at the time. 65 In the Radium Institute, there was no previous experimental tradition with such an optical system.